Window-blind



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WINDOW BLIND.

Patented Oct. 1,1889.

No. 411.972. .E91 ,or

` line as Fig.

EDVARD PATENT STOEPPELVERTH AND HENRY STOEPPELVERTH, OF ST. LOUIS,

MISSOURI.

WINDOW-BLIND.

SPECIFICATION forming part of Letters Patent No. 411,972, dated October 1889.

Application filed May 1l, 1889.

To a-ZZ whom it may concern.-

Be it known that we, EDWARD STOEPPEL- WERTH and HENRY STOEPPELWERTH, of St. Louis, Missouri, have jointly made an Improvement in \Vindo\v-Bliuds, of which the following is a full, clear, and exact description.

The improvement relates to window-blinds Whose slats are adjustable. In the roller-Slat blind (the most familiar one of the class of blinds referred to) the slats are journaled at their ends in the stiles, and they are adapted to be adjusted by means of a bar-,'Which, by means of loosely-interlocking staples upon the bar and slats, is connected with the slats at the edges thereof. Such a construction is quite a desirable one, in that it provides for the adjustment of the slats; but it is objectionable, in that it is fragile and easily got out of order, liable to rattle, and not easily adjusted to hold the slats partially open.

To obviate, in a measure at least, the objections referred to, and to provide an improved window-blind, is the aim of the pres- 3 ent improvement, which consists in a Windowblind having two series of slats, a fixed series and a movable series, the slats in the fixed series being spaced apart to form openings between them, and the slats in the movable series being adapted as a series to be adjusted so that the openings in the fixed series can be closed or opened, and the slats of the movable series at the upper edge thereof lapping upon the inner face of the fixed slats, respectively, and at the lower edge thereof lapping upon the outer face of the fixed slats, substantially as hereinafter described and claimed, aided by the annexed drawings, forming part of this speciiication, of Which- Figure l is an inside elevation of the improved blind, the openings between the slats ot' the stationary series of slats being closed by the slats of the movable series. Fig. 2 is a vertical cross-section oi' the improved blind on the line 2 2 of Fig. l. Fig.3 is also a vertical cross-section of the blind on the same 2, but having the movable series of slats adjusted to uncover the openings in the fixed series. Fig. 4 is a horizontal crosssection of the blind on the line 4 l of Fig. 2.

Fig. 5 is an inside elevation of the improved Serial No. 310,361. (No model.)

blind, the slats thereof being adjusted to lap, and the openings in the ixed series being closed by means of the movable series. Fig. 6 is a vertical cross-section of the improved blind on the line 6 6, Fig. 5. Fig. 7 is also a vertical cross-section of the blind on the same line as Fig. 6, but having the movable series of slats adjusted so that the openings in the stationary series of slats are unobstructed. Fig. 8 is a horizontal cross-section of the blind on the line S 8, Fig. G.

The same letters of reference applied to the different iigures denote the same parts.

A represents the improved blind.

B B, Figs. l, 2, 3, and et, represent the iiXed slats. They are secured at their ends to the stiles O O of the blind.

Various modes of uniting the slats B and the stiles may be adopted. One desirable mode is that shown in Fig. 4 of the drawings.

D D are the openings between the slats B.

E E represent the movable slats. As in adjusting them they are moved as one part, suitable means are employed to unite them. This is done by attaching them at their ends to upright bars e, so that the slats and bars can be moved together past the iixed slats, and so as to close and open the spaces D between the fixed slats. To this end the slats E are su itably spaced apart, and they are each Wide enough not only to cover the opening D, but also, at their upper and lower edges, to lap upon t-he edges of the adjoining fixed slats. The open and closed positions of the slats E are shown, respectively, in Figs. 3 and 2.

The adjustment of the slats E is effected by means of the adj usting-rod F, which is attached to one or more of the movable slats,

and near its lower end has a series of notches 9o f, by means of which, after the slats have been raised or lowered to the desired point, the bar can be made to engage with a catch upon the side of the blind. The movable' slats in this manner can to Wholly or to partly close the openings D, or to leave them Wholly unobstructed.

As thus far described the movable slats have been treated as being wholly upon one side of the iixed slats, and they are so shown in Figs. l, 2, and 3.

Au addition. l feature of the improvement be adjusted either IOO is making the movable slats E so that they shall each, at the lower edge e thereof, lap upon the outer side of the upper edge b of the next lower fixed slat B. To this end, and as the best shape therefor, the slats B and E are relatively shaped as shown in Figs. 5, 6, and 7. The outer face b of the fixed slats is inclined, as shown, and the upper portion b2 of the inner face is made vertical and the lower portion b3 inclined, as shown. The outer face of the upper portion e5 of the movablerslat is made Vertical to slide against the upper Vertical part of the fixed slat, and the lower portion el of the movable slat is inclined out-ward to lap upon the outer face of the fixed slat. The two positions of the movable slatsthat is, when adjusted to closeand adj usted to unobstruct the openings D in the fixed series of slats-are shown, respectively, in Figs. 6 and 7. Otherwise the blind is substantially as first above described.

We claim- 1. A Window-blind having' a series of fixed slats and a sliding series of slats, the slats of said sliding series at the upper edge thereof lapping upon theinnerface of the fixed slats,

` respectively, next above and at the lower edge thereof lapping upon the outer face of the fixed slats next beneath, substantially as described.

fixed slats next beneath, and said slidingseries of slats having connected therewith the adjusting-bar F, arranged as described, for sliding and holding in position said series of slats, substantially as described.

3. The combination, in a Window-blind, o f the series of fixed slats B and the sliding series of slats E, said slats B being spaced apart, as described, and having the outer face b inclined, as shown, and the Lipper portion of the inner face niade vertical and the lower portion inclined, as shown, and said slats E being spaced apart, as shown, and the upper portion being made vertical and the lower portion inclined and made to lap upon the fixed slats, substantially as described.

Vitness our hands this 7th day of May, 1889.

EDW'ARD STOEPPELWERTH. HENRY STOEPPELWERTH.

Vitnesses:

C. D. MOODY, M. J. LORRAIN. 

